Guard and knife attachment for shoe-sewing machines.



G. C. RICHARD. GUARD AND KNIFE ATTACHMENT FOR SHOE SEWING MAQHINES.

APPLICATION FILED OCT. ZI. I9l2- RENEWED JAN. 25, I9I5- Patented Oct. 10,1916.

3 SHEETS-SHEET I G. C. RICHARD.

GUARD AND KNIFE ATTACHMENT FOR SHOE SEWING MACHINES. APPLICATION FILED OCT. 2I. I912- RENEWED JAN. 25, I915.

1 60,650. Patented b. 1916.

3 SHEETSSHEET 2.

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J9 orvleya G. C. RICHARD. GUARD AND KNIFE ATTACHMENT FOR SHOE SEWING MACHINES. APPLICATION FILED on. 21 1912. RENEWED JAN. 25. 1915.

1 ,200,650. Patented Oct. 10, 1916.

3 SHEETS-SHEET 3.

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' Gannon o. RICHARD, or LYNN, MASSACHUSETTS,

STATES PATENT, OFFTGE.

ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

GUARD AND KNIFE ATTACHMENT FOR SHOE-SEWING MACHINES.

Application filed October 21, 1912, Serial No. 726,916. Renewed January 25,

To all whom it may concern:

Be it known that I, Giimioiv Conrrors Riel-nun), a citizen of the United States, and a resident of Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Guard and Knife Attachments for Shoe- Sewing Machines, of which the following is a specification.

This invention relates to a gage and channeling devices for machine for sewing boots and shoes, and has particular reference to means for determining the distance at which a channel in the welt for the line of stitches, and the line of stitches placed in such channel, shall be from the edge of the outer Sole and welt so that the stitches shall be at greater or lesser distance from the edge as may be desired.

An object of my present invention is to provide an improved attachment for outsole stitching machines which will enable the operator to throw the edge gage out of operation and to sew along the shank without employing the channeling knife, at any distance that may be desired from the edge of the shank portion of the sole, and to then bring into operation both the edge gage and the knife so that the distance of the line of stitching from the edge of the forepart of the sole shall be uniform.

A further object of the invention is to provide a device of this character by means of which both the gage and the knife may be moved to operative positions simultaneously, and whereby one and preferably either of the members called respectively the gage and the knife may be used independently.

To these ends the invention consists in the improvements which I shall now proceed to describe and claim.

Of the accompanying drawings :Figure 1 is a side elevation of so much of a well known form of boot or shoe sewing machine, with my attachment applied thereto, as is necessary toexplain the invention. Fig. 2 is a view similar tola portion of Fig. 1, some parts being in section, and illustrating adjustments thatmay be given to the gage or edge guide. ,3 is an elevation from the left of Fig. 1. Fig. t represents a section on line 4& of Fig. 1. Fig. 5 repreeents'a detail sectien on iine 5-5 of Fig. 3.

Specification of Letters Patent.

Patented Oct. 10, 1916.

1915. Serial No. 4,403.

Fig. 6 represents a detail section on line 6-6 of Fig. 4%. Fig. 7 represents a detail sectional elevation on a line above 7 in Fig. 4:. F ig. 8 is a View similar to Fig. 7 but illustrating a difierent position of the knife or channeler. Fig. 9 represents a section on line 99 of Fig. 3. Fig. 10 is a plan view of an outer sole to illustrate work that may be done with a machine having my improved attachment.

- The same reference characters the same parts in all the figures.

The work rest 15 is of a well known form, the presser foot 16 being pivotally supported at 17 and having an arm 18 provided with a pin or rod 19 having a spring 20 tending to draw the rod 19 upwardly to yieldingly depress the presser foot, a handle 21 being provided to enable theoperator to raise the presser foot to introduce the work. The awl 22, needle 23, looper 2 1 (Fig. 3) and the frame arm or bracket 25 are or may be of a well known type of lock stitch sewing machine for boots and shoes, such as the Goodyear stitcher.

The work rest 15 is provided with an aperture 26 as usual, for the needle and awl.

In the embodiment of my invention illustrated, my attachment has a base plate 27 which is secured to the top 28 of the machine frame standard, Fig. 4, said plate having slots 29 through which attachment screws 30 pass into said standard top 28, said slotand screw structure permitting the attachment to be adjusted so as to vary the normal position of the gage toward and from the axis of oscillation of the needle and awl. The base plate 27 is provided with three brackets 31, 32, 33, (see Figs. 3, l, 5 and 9). Said brackets are provided with apertures so that they form bearings for oscillatory parts hereinafter described. The brackets 31 and 32 are split so that the size of the apertures therein may be varied. The bracket 31 is provided with a clamp screw 34 and the bracket 32 is provided with a clamp screw 35, the especial functions and advantages of which will be hereinafter described. The bracket 33 is removably connected to one end of the base plate 27 as by means of one or more attaching screws 36, the removability, of said bracket being for the purpose of assembling and disassene indicate bling parts located between it and the bracket 32.

Mounted in the bearing aperture of bracket 31 is the sleeve or hub 37 of a clownwardly extending arm 38 (Fig. 4). The side face of the lower end of said arm 38 is provided with a notch 39 (Fig. 9) a shoulder 40 to form a stop as presently described, and a cam toe 41 projecting as shown in Fig. 9.

A. shaft 42 extending at one end through the hub 37, has a handle 43 secured to it as by a pin 44. Said handle is provided with lugs carrying a pivot 45 for a latch 46 having a grip extension 47 between which and the handle 43 is located a spring 48. The latch 46 extends through a hole 49 in the handle 43, the spring tending to force said latch toward the side face of the lower end of the arm 88, said latch serving, when engaged with the notch 39 to lock the handle and the shaft 42 so that no oscillation can be imparted thereto provided the split bearing 31 is clamped tightly to hold the sleeve 37.

Mounted in the bearing provided in the bracket 32 is the sleeve or hub 50 (Figs. 4, 6 and 9) of an arm 51 having a hole 52 and extending upwardly and having adjustably connected thereto the shank 53 of the sole edge guide 54, the connection between said shank 53 and arm 51 being effected by means of screws 55 passing through slots 56 into the arm 51 so that the height or vertical position of the guide 54 may be adjustably secured.

Adjacent the arm 51 (Fig. 4) is an arm 58 mounted upon the shaft 42 and rigidly secured thereto as by a pin 57. Said arm 58 carries a pm or screw 59 which projects through the hole 52 in the guide orgage arm 51 so that when the shaft 42 is oscillated it will, through the arm 58 and pin 59, impart oscillatory movements to the guide or gage, but with some lost motion due to the relative size of the pin 59 and hole 52 for the purpose hereinafter described.

The end of the shaft beyond the arm 58 is reduced as shown at 60 and on this reduced end is mounted a sleeve or hub 61 having an eccentric 62. The sleeve or hub 61 is mounted in the bearing aperture in the bracket 33 so that said bracket not only affords a support for said sleeve or hub but also, through the latter, affords a sup port for one end of shaft 42.

A set screw 63 passing through the sleeve 61 and bearing against the reduced end portion 60 of the shaft enables the eccentric 62 to be so secured that it will partake of all movements imparted to the shaft 42, or to beleft loose. I

Mounted-on the eccentric 62 is an arm 64, said arm having an aperture fitting the eccentric so that when the latter is shifted about its axis, the arm will be moved up and down. To said arm is adjustably secured the channeling knife 65, the upper end of which extends into, the aperture 26 in the work rest 15, so that the work rest forms a guide for the knife 65 and prevents the latter and its arm 64. from moving laterally; consequently, the changes of position that may be imparted to the knife by means of the eccentric 62 will be only vertical ones. The knife 65 is preferably adjust-ably connected to the arm 64 by means of screws 67 passing through a vertical slot 66 in the shank of the knife 65 as shown in Figs. 3 and 4.

The work gage 54 and the channeling knife 65 are so arranged that the operator can use them independently without taking either one out of the machine and consequently any required adjustment is facilitated.

In use, the parts occupy the positions shown in Fig. 1, the latch 46 engaging the locking notch 39 so that the shaft is held in the fixed position. As will be evident from Fig. 6, the gage 54 can not move to the right, or away from the work, because the side of the hole 52 in the arm 51 of the gage bears against the pin 59 which, as has been described, projects from an arm that is rigidly secured to the shaft. quently, so long as the shaft is locked, the work gage is in operative position. To shift or move both the gage and knife out of operative position, the operator simply grasps both the handle 43 and the grip 47 of the latch so as to unlock the shaft so as to enable the shaft to be rocked to carry the gage to the dotted line position of Fig. 2. This movement of the shaft results in shifting the eccentric 62 from the position shown in Fig. 7, to the position shown in Fig. 8, thus lowering the knife 65 so that its operating end will be below the upper surface of the work rest 15 and consequently out of position to perform any channeling operation.

As has been stated, the aperture 26 in the work rest guides the knife in its vertical movements and prevents it from swinging aside. When the gage has been so shifted aside and the knife lowered, the operator can perform sewing along the shank of the sole as indicated between the points a and 7) in Fig. 10, determining the distance from the edge at which the sewing shall be performed by manually controlling the lateral position of the work. After the work has been sewed along to substantially the point .7) of Fig. 10, the operator simply shifts the handle in the position shown in Fig. 1, against stop 40 which results in placing the gage in the desired position to determine the distance at which the sewing around the forepart of the shoe shall be from the edge of the sole. This last movement of the and sometimes above,

Consehandle and of course, the shaft also, causes the eccentric 62 to return the knife so that its operative end or tip projects above the work rest, as shown in Fig. 7 resulting in cutting a stitch-receiving channel in the welt to receive the stitches.

The lost motion resulting from the provision of the hole 52 in the gage arm 51 enables the knife to be moved sufficiently to lower it without moving the guide 5 f too far. In other words, while the shaft oscillates far enough to cause the eccentric to act as described, that same amount of motion of the shaft will not throw the gage outwardly to an excessive distance.

The shaft oscillates freely in the sleeve or hub 37 which latter carries the arm 38 provided with the locking notch 39. Therefore, by loosening the screw 34, the said hub 37 and its arm 38 can be adjusted and then the screw 34c can be tightened. Such adjustment changes the position of the locking notch 39 so that when the latch is in engagement with such notch the normal or locked position for the gage 5 1 may be adjusted so as to provide for greater or lesser distances from the edge of the sole and welt of the channeling and stitching around the forepart of the shoe.

By removing the pin or screw 59, the gage may be displaced permanently from position so that oscillation of the shaft will afi'ect only the channeling knife. By tightening the screw 35 so as to bind upon the sleeve or hub 50, the gage can be rigidly fixed in any position so as not to be shifted by oscillations of the shaft provided the pin or screw 59 is omitted. By loosening the screw 63 so that the eccentric 62 will be disconnected from the shaft, the said eccentric can be left in a lowered position so that the channeling knife will remain in the inoperative position shown in Fig. 8, the connections for the gage being left complete, however, so that the latter can be manipulated.

It will now be seen that I have provided a convenient and simple attachment for sewing machines of the character described which enables the operator to sew without either the gage or the knife being in operative position, or to throw both the knife and gage in to operative position simultaneously at different points of the work that may be desired. And of said two members, namely, the knife and the gage, either one can be displaced while leaving the other connected for manual shifting by the operator. Provision is therefore made for selectively shifting the said members, and making either member operative and the other inoperative. lhat part of the shifting mechanism which is associated with and controls the channeling knife includes a single manually operated part, the screw 63, a loosening movement of which renders the channeling knife inoperative while a tightening movement renders the knife operative. The machine is therefore convertible from one mode of operation to another with the minimum expenditure of time.

I claim 1. A shoe sewing machine having shiftable members including a work gage and a channeling knife, and shifting mechanism having means for selectively shifting said members into and out of operative position.

2. A shoe sewing machine having shiftable members including a work gage and a channeling knife and mechanism for shifting said members into and out of operative position, said mechanism having means for renderin' either member inoperative and leaving t 1e other operative.

3. The combination with a shoe sewing machine, of a shaft having means for oscillating it, a work gage and a channeling knife mounted on said shaft, and operating devices carried by said shaft for lowering the knife and shifting the gage out of operative position.

4:. The combination with a shoe sewing machine, of a shaft having a handle for oscillating it, adjustable detent mechanism cooperating with said handle for holding the shaft, a work gage and a channeling knife mounted on said shaft, and operating devices carried by said shaft for lowering the knife and shifting the gage out of operative position.

5. A shoe sewing machine having a shaft provided with an arm, a gage loosely mounted on said shaft and having lost mo tion connections between it and said arm of the shaft, a channeling knife, and means carried by said shaft for lowering the channeling knife when the shaft is oscillated.

6. A shoe sewing machine having a shaft, an eccentric carried by said shaft, a channeling knife mounted on said eccentric, a movable edge gage, and connections whereby the latter is shifted by movement of said shaft.

7. A shoe sewing machine having a shaft, an eccentric carried by said shaft, a channeling knife mounted on said eccentric, said eccentric being releasably connected with said shaft, a movable edge gage, and connections whereby the latter is shifted by movement of said shaft.

8. An attachment for shoe sewing machines comprising a base having clamp bearings, sleeves mounted in said bearings, a shaft mounted in said sleeves and having a handle, a latch carried by said handle, a detent carried by one of said sleeves, an arm carried by the shaft and having a pin, a work gage having an arm mounted on the other sleeve and provided with an opening through which said pin passes, an eccentric carried by said shaft, and a channeling knife mounted on said eccentric.

9. A shoe sewing machine having shiftable members including a Work gage and a channeling knife carrier, a channeling knife, mechanism for shifting said Work gage and carrier including a common actuator and suitable connections, and means for rendering the connections to one of said members inoperative.

10. A shoe sewing machine having shiftable members including a Work gage and a channeling knife, mechanism for shifting said members including a common actuator and suitable connections, and means for rendering the connections to either of said members inoperative.

11. A shoe sewing machine having shiftable members including a Work gage and a channeling knife carrier, a channeling knife, mechanism for shifting said Work gage and carrier including a common actuator and suitable connections, and means for rendering the connections to the channeling knife carrier inoperative.

12. A shoesevving machine having shiftable members including a Work gage and a channeling knife, mechanism for shifting said members including a common actuator and suitable connections, and means for rendering the connections to the Work gage inoperative.

13. A shoe sewing machine having shiftable members including a Work gage and a channeling knife, mechanism for shifting said members including a common actuator and suitable connections, and means for rendering the connections to the Work gage inoperative and for securing the gage in fixed position.

In testimony whereof I have affixed my signature, in presence of two Witnesses.

GEDEON C. RICHARD.

Witnesses ALICE F. TRUssELL, HARRY T. TURNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

